Smoke-consumer.



A 9 :1 3 G U A D E T N E T A P N A M R E H .S L W SMOKE CONSUMER.

PPLICATIO N FILED MAY 2. 1904.

N0 MODEL.

'W/TNESSES ATTORNEYS.

' UNITED STATES Patented August 23, 1904.

PATENT OFFI E.

SMOKE-CONSUMER.

SPECIFICATION forming part of Letters Patent No. 768,082, dated August23, 1904.

' Application filed May 2, 1904. Serial No. 205,886. (No model.)

To (tZZ whom, it may concern:

Beit known that I, WILL'IAMI. SHERMAN, a citizen of the United States,residing at Milwaukee, county of Milwaukee, and State of Wisconsin, haveinvented new and useful Improvements in Smoke-Consumers, of which thefollowing is aspecification.

My invention relates to improvements in smoke-consumers to be used inconnection with stoves and furnaces, and it pertains to that class inwhich the smoke which has escaped from the stove is returned to thestove beneath the grate.

The construction of my invention is explained by reference to theaccompanying drawing, which represents a vertical section thereof inconnection with a stove.

The several parts are referred to by reference-letters.

A represents a stove of ordinary construction, with the exception thatthe base B is provided with an inlet-opening O, through which the smokewhich has escaped from the upper part of the stove is returned to thebase through the duct D, when it passes up through the grate E and isconsumed with the fuel.

F is a heating-drum into which the smoke and other products ofcombustion are ledfrom the stove A through the pipe G.

H is apartition subdividing the drum F into two compartments I and J Thepartition H is provided with a damper K.

When the damper K is closed, the smoke and other products of combustionare compelled to pass up through "the compartment I and over the upperend of the partition H, when they escape to. the chimney or exterior airfrom the compartment J. through the stovepipe L.

In starting a fire the damper K is preferably opened, whereby the smokeis free to pass direct from the stovepipe G to the stovepipe L withoutpassing over the partition H. When the fuel in the stove is wellignited, the damper K is closed and the damper M opened, when the smokewhich ascends to the upper part of the drum will be caused to enter the'ductD through the funnel N, when it is drawn down into the base ofthestove through said duct D and, from thence up through the grate ofcourse be understood that when the eXterior air is entering the stovethrough the pipe O a downward current of air will be induced thereby inthe duct D, which will cause the smoke which has ascended to the upperend of the drum to enter said duct D, when it will be drawn into thestove beneath the base, as previously stated.

" I am aware of the fact that attempts have heretofore been made toreturn the smoke from the direct-draft passages between the stovepipeand chimney with a view of consuming the same; but in such prior formsof construction it has been found diificult to overcome the directcurrent of heated air between the stove and the chimney sufficiently tosuccessfully return the same to the stove.

Attention is especially called to the fact that by my construction thereturn-pipe is connected with the drum at its upper end, at which pointthe smoke becomes lodged or trapped above the outlet-duct to thechimney, which is connected with the drum at its lower end, owing towhich fact the smoke is much more readily drawn into the stove than itwould be were the outlet-pipe which leads to the chimney connected withthe upper end of the drum in the direct line of the escaping smoke,whereby a much larger percentage of the gas is returned to the stovethan would otherwise be by the forms of construction heretofore made. Itwill of course be understood that by leading the air necessary tocombustion to the stove through the return smoke-duct asiphon action isproduced in said duct which cooperates with the upward current of air inthe stove to draw the smoke from the drum to the stove, as stated.

Having thus described-my invention, what I claim as new, and desire tosecure by Letters Patent, is o 1. In a device of the described class,the combination of a stove; a drum provided with a vertical partitionsubdividing its interior IDC into two compartments; a pipe leading fromsaid stove to said drum on one side of said partition; a returnsmoke-duct communicating from the upper end of said drum with the baseof the stove beneath the combustionehamber and an escape-pipecommunicating from the lower end of said drum with the exterior air. a

2. In a device of the described class; a stove; a drum subdivided intotwo compartments by a vertical partition; a damper located in the lowerend of said partition; a pipe communicating between the stove and saiddrum on one side of said partition; a duct communicating from the upperend of said drum on the other side of said partition with the base ofthe stove below the combustion-chamber .and an escape-pipe communicatingfrom the lower end of said drum with the exterior air,

substantially as set forth.

3. In a device of the described class, a stove;

a drum subdivided into two compartments by a vertical partition; adamper located in the lower end of said partition; a pipe communicatingbetween the stove and said drum on one side of said partition; a duetcommunicating from the upper end of said drum on the other side of saidpartition with the base of the stove below the combustion-chamber;

an escape-pipe connnunicating from the lower end of said drum with theexterior air; an inlet air-duet communicating from the lower end of saiddrum with the exterior air; an inlet air-duct communicating from theexterior air with the base of the stove through said return smoke-duct.

4:. In a deviee'of the described class the combination of a store; adrum subdivided into two compartments by a vertical partition; a damperlocated in said partition; a pipe leading from the stove to said drum onone side of said partition; a return-duct provided with a funnel at itsupper end communicating from the upper end of said drum with the base ofsaid stove; an inlet air-duet communicating from the exterior with thebase of the stove through the lower end of said return smoke-duct and anescape-duet communicating from the lower end of said drum on theopposite side of said partition from the inlet smoke-duct with theexterior air, all substantially as and for the purpose specified.

In testimony whereof .l aiiix my signature in the presence of twowitnesses.

VVlLLlAM l. SHER'B'IAN.

W itnesses:

JAs. B. ERWIN F. O'r'ro.

